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  <title>Audio stream volume</title>

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    <h1><a href="//webrtc.github.io/samples/" title="WebRTC samples homepage">WebRTC samples</a> <span>Audio stream volume</span></h1>

    <p>Measure the volume of a local media stream using WebAudio.</p>

    <div id="meters">
      <div id="instant">
        <div class="label">Instant: </div>
        <meter high="0.25" max="1" value="0"></meter>
        <div class="value"></div>
      </div>
      <div id="slow">
        <div class="label">Slow: </div>
        <meter high="0.25" max="1" value="0"></meter>
        <div class="value"></div>
      </div>
      <div id="clip">
        <div class="label">Clip: </div>
        <meter max="1" value="0"></meter>
        <div class="value"></div>
      </div>
    </div>

    <p>The 'instant' volume changes approximately every 50ms; the 'slow' volume approximates the average volume over about a second.</p>
    <p>Note that you will not hear your own voice; use the <a href="../audio">local audio rendering demo</a> for that.</p>
    <p>The <code>audioContext</code>, <code>stream</code> and <code>soundMeter</code> variables are in global scope, so you can inspect them from the console.</p>

    <a href="https://github.com/webrtc/samples/tree/gh-pages/src/content/getusermedia/volume" title="View source for this page on GitHub" id="viewSource">View source on GitHub</a>

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